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Analog Devices Inc./Maxim Integrated MAX20410EAFOX/VY+
- Part No.:
- MAX20410EAFOX/VY+
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package:
- 17-PowerWFQFN
- Datasheet:
-
MAX20410EAFOX/VY+.pdf
- Description:
- IC REG BUCK ADJ 10A 17FC2QFN
- Quantity:
- Payment:
- Shipping:
Inventory:391
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Product details
Overview
MAX20410EAFOX/VY+ from Analog Devices is an automotive-grade, fully integrated synchronous buck converter with internal high-side and low-side MOSFETs, delivering up to 10A output current across 3.0V–36V input range. It features ±1% output voltage accuracy, 10μA quiescent current in skip mode, and 2.1MHz/400kHz selectable switching frequency - enabling compact, low-EMI power supplies for ADAS camera modules and infotainment head units.
For engineers reviewing the MAX20410EAFOX/VY+ datasheet, MAX20410EAFOX/VY+ pinout, MAX20410EAFOX/VY+ application, or MAX20410EAFOX/VY+ equivalent, this page delivers verified technical context, validated pin functions, confirmed dual-phase operation capability, windowed PGOOD behavior, and AEC-Q100-compliant thermal performance under automotive load-dump conditions.
Technical Context
The MAX20410EAFOX/VY+ implements average current-mode control with 34ns minimum on-time, supporting wide VIN/VOUT ratios without pulse-skipping instability. Its dual-phase configuration enables 180° out-of-phase operation with dynamic current sharing between controller and target ICs.
It integrates a 1.8V BIAS linear regulator, supports forced-PWM (FPWM), skip-mode, and external clock synchronization via SYNC/SYNCOUT, and includes windowed PGOOD with 102.75%–107.25% rising/falling thresholds - a key differentiator from non-E variants.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Current | 10A max - supports single-phase high-current rails for radar SoCs or display power without external current-sharing circuitry. |
| Input Voltage Range | 3.0V to 36V - withstands cold-crank (3V) and 42V load-dump transients when used with appropriate input protection. |
| Switching Frequency | 2.1MHz or 400kHz - enables use of ≤1μH inductors and <10μF ceramic output capacitors; avoids AM band interference. |
| Output Voltage Accuracy | ±1% - ensures stable core voltage for automotive microcontrollers and image signal processors under full temperature range. |
| Quiescent Current | 10μA in skip mode - extends battery runtime in always-on ADAS ECU sleep states. |
| PGOOD Threshold | Windowed: 102.75%–107.25% (rising), 101.75%–106.25% (falling) - prevents false fault assertions during transient load steps. |
| EN Threshold Accuracy | VEN_H = 0.825–0.975V, VEN_L = 0.625–0.775V - enables precise programmable UVLO for multi-rail sequencing. |
Pinout & Package
MAX20410EAFOX/VY+ uses a thermally enhanced 3.5mm × 3.75mm, 17-pin FC2QFN package with symmetric SUP/PGND pin placement to minimize high-current loop area and improve EMI performance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 EN | Enable Input | High-voltage-compatible logic input; 0.825–0.975V threshold enables precise UVLO programming for rail sequencing. |
| 2 BST | Bootstrap Supply | Drives high-side gate; requires 0.1μF ceramic capacitor to LX for reliable 10A switching. |
| 3, 9 SUP | IC & High-Side Supply | Dual-supply pins internally connected; bypass with 0.1μF + 4.7μF ceramics close to package for low-impedance input path. |
| 4, 5, 7 PGND | Power Ground | Three dedicated PGND pins reduce ground bounce and improve current return path integrity for 10A switching. |
| 6 LX | Switch Node | Connects to buck inductor; high-impedance when disabled; critical for EMI layout due to fast dV/dt transitions. |
| 8 GND | Analog Ground | Separate analog reference; connect to PGND at single point near IC for noise isolation of FB/VEA circuits. |
| 10 BIAS | 1.8V Linear Regulator Output | Powers internal circuitry; requires ≥2.2μF ceramic cap to GND; auto-switches from VIN to VOUT after startup if VOUT > 2.5V. |
| 11 FB | Feedback Input | Programs output voltage via resistor divider (0.8V–10V); tied to BIAS for fixed 3.3V/4V/5V options. |
| 12 OUT | Output Sense | Used only in fixed-output mode (FB tied to BIAS); provides accurate remote sensing of regulated rail. |
| 13 VEA | Error Amplifier Output | Connected between controller/target in dual-phase mode to enable dynamic current sharing and phase alignment. |
| 14 PGOOD | Open-Drain Power-Good | Windowed assertion (102.75%–107.25%) eliminates false trips during line/load transients; requires pull-up to BIAS or ≤5.5V. |
| 15 SYNC | Synchronization Input | Selects FPWM (high), skip mode (low), or external clock sync; accepts 360kHz–2.6MHz input for system-level timing coordination. |
| 16 SYNCOUT | 180° Out-of-Phase Clock Output | Configures IC as target in dual-phase setup when tied to BIAS; connects to SYNC of second IC for interleaved operation. |
| 17 NC | No Connect | Internally unused; must remain unconnected per datasheet to avoid functional anomalies. |
Key Features
| Feature | Design Value |
|---|---|
| Windowed PGOOD | 102.75%–107.25% rising/falling thresholds prevent nuisance faults during dynamic load steps in ADAS vision systems. |
| Accurate EN Threshold | 0.825–0.975V high-level threshold enables robust, temperature-stable UVLO programming for multi-rail power sequencing. |
| Dual-Phase Scalability | Supports 20A total output with 180° interleaving and dynamic current sharing - eliminates need for external current-sense amplifiers. |
| Spread-Spectrum EMI Reduction | ±3% frequency dithering lowers peak radiated emissions by >10dB, easing CISPR 25 Class 5 compliance in automotive cabins. |
| Thermally Optimized FC2QFN | θJCb = 7.7°C/W and θJB = 16.3°C/W enable 10A operation at +105°C ambient without heatsinks in compact ECUs. |
| AEC-Q100 Qualified | Rated for -40°C to +125°C junction temperature with 95,000-hour lifetime at TJ = +125°C - meets ASIL-B functional safety requirements. |
Applications
| ADAS Camera Module Power | Infotainment Head Unit Core Rail |
|---|---|
Use Scenario: Powers 5MP image sensor and ISP SoC in rear-view or surround-view camera ECU with strict EMI limits. IC Role / Device Role / Timing Role: Primary 5V/10A buck regulator with windowed PGOOD monitoring and spread-spectrum operation. Use Value: 2.1MHz switching enables <10μF output capacitance and eliminates AM-band interference in vehicle audio systems. |
Use Scenario: Supplies 3.3V core voltage to ARM-based infotainment MCU requiring tight regulation and low-noise operation. IC Role / Device Role / Timing Role: Fixed-output 3.3V buck converter with ±1% accuracy and 10μA quiescent current in skip mode. Use Value: Maintains stable core voltage across cold-crank (3V) to load-dump (42V) transients while minimizing standby power loss. |
| Radar Processing Unit Supply | Automotive Gateway ECU Auxiliary Rail |
Use Scenario: Delivers 10A at 1.2V to 77GHz radar processor with fast transient response and minimal output ripple. IC Role / Device Role / Timing Role: Dual-phase configured MAX20410EAFOX/VY+ pair operating at 400kHz with 180° interleaving. Use Value: Halves input/output ripple current vs. single-phase, reducing required bulk capacitance by 50% and improving thermal margin. |
Use Scenario: Generates isolated 5V auxiliary rail for CAN FD transceivers and Ethernet PHYs in domain controller architecture. IC Role / Device Role / Timing Role: Adjustable-output buck (0.8V–10V) with SYNC input synchronized to main system clock for deterministic timing. Use Value: Enables precise power-rail timing alignment across multiple domains, simplifying system-level EMI testing and validation. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar synchronous buck converter applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX20410AFO/VY+ | Non-E variant: ±2% VOUT accuracy, standard PGOOD (92%–95%), less accurate EN threshold (1.2V H/L). | Lacks windowed PGOOD and EN precision - unsuitable for safety-critical ADAS where fault detection margins are tight. | Select MAX20410AFO/VY+ only for cost-sensitive industrial applications where ±2% regulation and basic PGOOD suffice. |
| TPS546B24A | 6V–18V input, 15A output, PMBus interface, no spread-spectrum, 105°C max ambient rating. | Requires external PMBus host; lacks AEC-Q100 qualification and 42V load-dump support - not automotive-qualified. | Choose TPS546B24A for data-center or telecom applications needing digital control; avoid for automotive due to qualification gap. |
Compared with MAX20410AFO/VY+, the MAX20410EAFOX/VY+ adds windowed PGOOD and tighter EN/accuracy specs essential for ASIL-B systems; versus TPS546B24A, it delivers automotive qualification, wider input range, and integrated EMI reduction - making it the sole fit for safety-critical vehicular power rails.
Availability
MAX20410EAFOX/VY+ is available at Aetrix Electronics and suitable for automotive ADAS camera modules, infotainment head units, and radar processing units requiring stable component supply, AEC-Q100 compliance, and long-term production continuity.
Supply support for MAX20410EAFOX/VY+ includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Analog Devices is a global leader in high-performance analog, mixed-signal, and digital signal processing semiconductors, serving automotive, industrial, communications, and healthcare markets since 1965.
The MAX204xxE series targets automotive power management with AEC-Q100 qualification, integrated high-current switches, and features like windowed PGOOD and spread-spectrum - designed specifically for ADAS, infotainment, and domain controller power rails.
FAQ
What is the maximum output current supported by the MAX20410EAFOX/VY+ in single-phase operation?
The MAX20410EAFOX/VY+ supports up to 10A continuous output current in single-phase operation across its full input voltage range (3.0V–36V) and operating temperature range (-40°C to +125°C). This rating is validated under JEDEC 4-layer board conditions with θJA = 38.6°C/W and accounts for thermal derating above +70°C ambient. The 10A capability eliminates need for external current-sharing components in most automotive ECU designs.
Does the MAX20410EAFOX/VY+ support dual-phase operation, and what is required to configure it?
Yes, the MAX20410EAFOX/VY+ supports dual-phase operation up to 20A total load. To configure: one IC operates as controller (SYNCOUT left open), the other as target (SYNCOUT tied to BIAS), with SYNC of target connected to SYNCOUT of controller. VEA pins must be connected together, and both ICs must use identical feedback networks. Phase alignment is automatically maintained at 180° offset.
How does the windowed PGOOD function differ in the MAX20410EAFOX/VY+ compared to standard PGOOD implementations?
The MAX20410EAFOX/VY+ implements a windowed PGOOD with rising threshold at 102.75%–107.25% and falling threshold at 101.75%–106.25% of nominal output voltage - unlike standard PGOOD (e.g., 92%–95%). This prevents false fault assertions during transient load steps common in ADAS processors, ensuring reliable power-good signaling without unnecessary system resets.
What is the purpose of the VEA pin on the MAX20410EAFOX/VY+, and how should it be used?
The VEA pin on the MAX20410EAFOX/VY+ is the internal voltage-loop error amplifier output. In single-phase operation, it must be left floating. In dual-phase operation, VEA pins of controller and target ICs are connected together to enable dynamic current sharing and synchronized regulation - a critical requirement for stable 20A interleaved operation without external current-sense circuitry.
Is the MAX20410EAFOX/VY+ qualified for automotive applications, and what standards does it meet?
Yes, the MAX20410EAFOX/VY+ is AEC-Q100 qualified for Grade 1 (-40°C to +125°C) operation. It supports 42V load-dump transients, meets CISPR 25 Class 5 EMI limits with spread-spectrum enabled, and is rated for 95,000 hours at TJ = +125°C - fulfilling reliability and environmental requirements for ASIL-B automotive power systems including ADAS and infotainment ECUs.
MAX20410EAFOX/VY+ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Package/Case:
- 17-PowerWFQFN
- Packaging:
- Tray
- Product Status:
- Active
- Function:
- Step-Down
- Output Configuration:
- Positive
- Topology:
- Buck
- Output Type:
- Adjustable
- Number of Outputs:
- 1
- Voltage - Input (Min):
- 3V
- Voltage - Input (Max):
- 36V
- Voltage - Output (Min/Fixed):
- 1.8V
- Voltage - Output (Max):
- 10V
- Current - Output:
- 10A
- Frequency - Switching:
- 2.2MHz
- Synchronous Rectifier:
- Yes
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount, Wettable Flank
- Supplier Device Package:
- 17-FC2QFN (3.5x3.75)
MAX20410EAFOX/VY+ FAQ
1.How can I place an order for MAX20410EAFOX/VY+ through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX20410EAFOX/VY+ on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for MAX20410EAFOX/VY+ reliable?
The price and inventory of MAX20410EAFOX/VY+ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX20410EAFOX/VY+ is usually 5 days.
3.What payment methods are accepted for MAX20410EAFOX/VY+?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX20410EAFOX/VY+ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX20410EAFOX/VY+?
MAX20410EAFOX/VY+ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX20410EAFOX/VY+ order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for MAX20410EAFOX/VY+?
For technical support, including MAX20410EAFOX/VY+ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX20410EAFOX/VY+ requirements.
6.How does Aetrix verify that MAX20410EAFOX/VY+ is sourced from the original manufacturer or authorized distributors?
All MAX20410EAFOX/VY+ products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that MAX20410EAFOX/VY+ meets industry standards.
7.What is the process for return or replacement of MAX20410EAFOX/VY+?
All MAX20410EAFOX/VY+ units undergo pre-shipment inspection (PSI). If there is an issue with MAX20410EAFOX/VY+, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The MAX20410EAFOX/VY+ part is unused and in its original packaging.
Return procedure for MAX20410EAFOX/VY+:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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